Sidewalk.



; UNITED STATES Patented April 26, 1904. {I

PATENT OFFI E.

- EDWARD A.- LANGENBACH, or oANTon'omo, sslenontro Tan BERGER MANUFACTURING ooMPANY or CANTON, orno, A con- PORATION.

' SIDEWALKL SPECIFICATION forming part of Letters Patent No. 758,184, dated April 26, 1904:

Application filed 6 15, 1903- .To all whom it may concern:

Be it known that I, EDWARD A. LANGENBAGH, a citizen of the United States, residing atCanton, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Sidewalks; and I dohereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the figures of reference marked thereon, in which I Figure l is a perspective view of a portion of my improved pavement, showing the different parts properly arranged with reference to each other. Fig. 2 is a section on line we, Fig. 1. Fig. 3 is a section on line 3/ Fig. 1, except no concrete or cement is shown in this figure. Fig. 4; is a detailed view of one of the lights.

The present invention has relation to sidewalks; audits object is to provide a sidewalk composed of a metal structure to form a support to hold in proper relation the cement or concrete used for the main body of the walk.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

In the accompanying drawings, 1 represents a sheet of metal, which sheet constitutes the support or holding-body for the cement or concrete, and, as shown, the sheet is bent to produce alternating ridges with bottoms alternating with tops having holding-apertures, such as 2, for transparent or translucent blocks.

The apertures 2 are shown formed rectangular; but it will be understood that these apertures may be of any other desired form without departing from the nature of'my invention, as it will be readily seen that it makes no difference in result, so far as the form of light aperture-blocks is concerned.

In sidewalk construction of the class to which my invention pertains it is of great importance that the metal sheet be so formed that it will be rigid and not liable to spring or bend, and in order to add rigidity to the metal sheet 1 the closed portions 3 at the bottoms SzialNo. 161,466. (No model.)

are corrugated longitudinally, which corrugations may be U or V shape, as desired, and by so forming the bottoms two contact-points 4 are formed, which lessen the liability as to the bending of the sheet owing to any irregularity of the foundation upon which the finished sidewalk is to rest.

In constructing sidewalks of any extended surface or where it is to be formed greater than it is practical to produce a single sheet of metal it will be understood that a number of sheets, such as 1, are to be placed. together in any convenient and well-known mariner.

In sidewalks to which the present invention pertains it is a very important matter that there be no relative movement as between the sheet 1 and the cement or concrete even in a limited degree, owing to the fact that by slight vibrations, either by the springing of the sheet metal or from any other cause, the cement or concrete is liable to become loosened from its metal support. In order to overcome these objections, it is my purpose to form upon the inclined flanges 5 corrugations 6, which may be of the general form shown in the drawings, or the corrugations may be of any other form, which corrugations are so formed that they present a surface adjacent to the cement or concrete that will hold the concrete in its original and intended position after said concrete or cement has become set.

It will be understood, that by forming the corrugations 6 or cement-holding beads there can be and will be no relative movement as between the sheet-metal support 1 and the cement or concrete.

Another advantage obtained by the use of the corrugations or beads, ridges, or depressions, as the case may be, is that the inclined flanges 5 will not buckle, owing to the fact that rigid sections or parts are produced between the tops and bottoms of the inclined flanges 5. I do not desire to be confined to any particular inclination of the flanges 5, as it will be understood that the object sought to be accomplished can be brought about without any particular reference to the inclination of the flanges, this being a matter of judgment only and of no importance within itself.

The blocks 7 should be so formed that they will be held in the apertures 2 without any danger of displacement and of course are to correspond in shape and size to the aperture 2.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

As an improved article of manufacture, a sheet of metal consisting of corrugated bottoms alternating with tops having holdingapertures for transparent or translucent blocks 

